CARCODING
Monitor your vehicle in real time, decode fault codes, code ECU features, and chat with an AI mechanic using CarCoding. On your phone and Windows PC.
Everything in One App
Dealer-level vehicle management with CarCoding, now on iPhone, Android, and Windows.
Live Gauge Dashboard
Monitor RPM, Speed, Coolant Temperature, and Turbo Boost in real-time with 4 animated SVG gauges.
- RPM, Speed, Boost, Temperature
- Throttle, Fuel, Battery, Engine Load
- Real-time streaming
Fault Detection
Generic OBD2 and manufacturer-specific enhanced DTC scanning, detailed descriptions, Critical/Warning/Info severity levels and one-tap code clearing.
- 10,000+ fault code descriptions
- Manufacturer-specific codes for 27 brands
- Likely causes and search integration
AI Mechanic
Your AI-powered mechanical assistant. Explains fault codes in plain English, suggests repairs.
- Advanced AI integration
- English chat
- Ready-made question templates
Vehicle Coding
Unlock hidden features with ECU feature coding. Extended module coding support for Renault, Toyota, Nissan, Kia, Hyundai, Honda, Volvo and more, alongside BMW and VAG.
- Mirror folding, digital speed and more
- Read + coding profiles for 11 brands
- Module identity read live from the vehicle
Is Your Car Supported?
Type your make and model to see which ECU modules can be coded on that car and which fault codes are documented for it.
Expanding Vehicle Coverage
More brands, more modules and more fault codes with every release. Here's what's new.
Multi-Brand Coding
Module coding beyond BMW and VAG — for Renault, Toyota, Nissan, Kia, Hyundai, Honda, Volvo and more. Module identity is read live from the vehicle and compatibility is reported honestly.
Manufacturer-Specific Fault Codes
16,000+ manufacturer-specific (enhanced) DTC definitions across 27 brands. Read body, ABS, airbag and transmission codes that generic OBD2 can't see.
Component & Actuator Testing
Actuator (IOControl) tests on engine and body modules, protected by a double safety lock. Check on the spot whether a component actually works.
Older-Generation Support
Advanced diagnostics over TP2.0 on older generations such as VAG PQ35/Mk5 (2004-2012); additional fault-code read paths for legacy K-line modules.
Take the Pulse of Your Car
Once you connect your ELM327 OBD2 adapter, track every parameter of your vehicle in real-time with 4 animated gauges.
RPM Monitoring
Read engine revolutions with millisecond latency.
Turbo Boost
Monitor boost pressure in bars live.
Engine Temperature
Track coolant temperature with color-coded alerts.
See the App Up Close
Real app screens — captured on iPhone.
Live Dashboard
RPM, speed, coolant temperature and boost pressure at once; throttle, fuel, battery, intake and engine load below.
ECU Coding
Module identity is read live from the vehicle, compatibility is reported honestly, settings are grouped into categories.
Diagnostics
Scan every system, filter codes by severity, share the report or clear them with a single tap.
Fault Code Detail
Explanation, likely causes and freeze frame for each code — and you can ask the AI mechanic.
Get Started in 3 Steps
Grab an ELM327 adapter, download the app, and start diagnosing in seconds.
Connect Adapter
Plug your ELM327 OBD2 adapter into your car's OBD2 port (usually under the steering wheel).
Pair via Bluetooth
Open the app. It automatically scans and connects to your adapter.
Start Diagnosing
Live data flows in. Scan fault codes, monitor gauges, chat with AI.
Code & Optimize
Unlock hidden ECU features. Take your performance to the next level.
Get to Know Your Car Today
Download CarCoding for free, connect your ELM327 adapter and see what your car has been trying to tell you.
The app is free to download. Some advanced features require an in-app purchase.
Help & Support
Reach us through multiple channels.